Congenital Absence of the Internal Carotid Artery

Florio, F; Balzano, S; Nardella, Michele; Strizzi, Vincenzo; Cammisa, M; Bozzini, V.; Catapano, Giuseppe; D’Angelo, Vincenzo

doi:10.1007/s002709900334

Cited by 61 publications

(52 citation statements)

References 8 publications

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“…The anomaly is often detected as an incidental Wnding. However, when symptoms are present they include recurrent headache, blurring vision, hearing loss, hemiparesis with or without cranial nerve palsy, Horner syndrome, and intracranial haemorrhage due to ruptured aneurysms [2]. Absence of the ICA is associated with 25-34% of aneurysm formation on the circle of Willis [2,10].…”

Section: Discussionmentioning

confidence: 99%

Unilateral agenesis of the internal carotid artery presented as transient ischaemic attack: a case report

Kiritsi¹,

Noussios

Tsitas

et al. 2011

Surg Radiol Anat

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Dysgenesis of the internal carotid artery (ICA) is a rare vascular disorder with a variety of different grades (agenesis, aplasia, and hypoplasia). The left internal carotid artery is reported to be affected by dysgenesis three times more often than the right one. Most of the patients with dysgenesis of the internal carotid artery are asymptomatic. We report a case of a patient with right internal carotid artery agenesis presented to our hospital as transient ischaemic attack. CT scans at skull base level with bone settings showed absence of the right carotid canal, consistent with congenital agenesis of the internal carotid artery. MR imaging of the brain revealed signal void of the intracranial portion of right internal carotid artery. Maximum intensity projection reconstruction confirmed the agenesis of the right ICA, with the right middle cerebral artery fed through a dilated posterior communicating artery and the right anterior cerebral artery supplied by the anterior communicating artery (fetal type of collateral flow). In patients with agenesis of the internal carotid artery non-invasive imaging techniques are currently the mainstay of diagnosis.

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Section: Discussionmentioning

confidence: 99%

Unilateral agenesis of the internal carotid artery presented as transient ischaemic attack: a case report

Kiritsi¹,

Noussios

Tsitas

et al. 2011

Surg Radiol Anat

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“…The ratio between right and left ICA agenesis is 1:3. 8 Very few cases of ICA agenesis have been reported in children, because of the collateral supply, which is sufficient to maintain cerebral perfusion. 4 ICA agenesis was discovered in our patient during evaluation for syncope.…”

Section: Discussionmentioning

confidence: 99%

Left Internal Carotid Artery Agenesis in a Child

Mohiuddin¹,

Seetharamarao²,

Kariyappa³

2015

jemds

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“…Studies have reported that ICA agenesis is more often seen on the left, and the left/right ratio of the pathology is 3:1 (6). ICA agenesis has been suggested to be a developmental variation, although its exact cause is unknown (7). The objective of this study was to report a patient with ICA agenesis who had initially presented with facial burning sensation, was diagnosed with left ICA occlusion, and referred to our center for further investigation and interventional treatment, and to discuss the differential diagnosis of internal carotid artery agenesis and occlusion.…”

Section: Introductionmentioning

confidence: 99%

A case report on differential diagnosis of internal carotid artery agenesis or occlusion

Korkmaz¹,

Benbir²,

İnce³

2015

tnd

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135Congenital internal carotid artery (ICA) agenesis is a rare abnormality. People with this abnormality usually have adequate collateral circulation and remain asymptomatic for many years. However, patients may also present with pulsatile tinnitus, headache or blurred vision, or rarely with ischemic stroke or subarachnoid hemorrhage. Diagnosis is usually incidental with the performance of carotid artery Doppler ultrasonography or cervical/cranial magnetic resonance imaging owing to other symptoms. ICA agenesis might also be misdiagnosed as ICA occlusion. In this manuscript, we report a patient with ICA agenesis who initially presented with facial paresthesis and was referred to our center for interventional therapy for left-sided ICA occlusion. Keywords: Internal carotid artery, agenesis, occlusionKonjenital internal karotis arteri (ICA, internal carotid artery) agenezisi nadir görülen bir anomalidir. Bu anomaliye sahip hastaların çoğu, yeterli kollateral dolaşım sayesinde uzun zaman asemptomatik olarak kalır. Az sıklıkta hastalar pulsatil tinnitus, baş ağrısı veya bulanık görme gibi yakınmalar ve nadiren iskemik inme ya da subaraknoid kanama tablosu ile başvurabilirler. Tanı genellikle başka bir nedenle yapılmış olan karotis arteri renkli Doppler ultrasonografisi veya servikal/ kranyal manyetik rezonans görüntülemeleri sırasında tesadüfen konur. Ancak dikkatli olunmadığı takdirde ICA tıkanması olarak yanlış bir tanı konulabilir. Bu yazıda, yüzünde yanma şikayeti ile başvuran ve sol ICA tıkanıklığı tanısı ile girişimsel tedavi amacıyla merkezimize yönlendirilen ancak ICA agenezi tanısı konulan bir hasta sunulmaktadır.

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Congenital Absence of the Internal Carotid Artery

Cited by 61 publications

References 8 publications

Unilateral agenesis of the internal carotid artery presented as transient ischaemic attack: a case report

Unilateral agenesis of the internal carotid artery presented as transient ischaemic attack: a case report

Left Internal Carotid Artery Agenesis in a Child

A case report on differential diagnosis of internal carotid artery agenesis or occlusion

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